102420143434 has 16 divisors (see below), whose sum is σ = 175623940800. Its totient is φ = 43882709184.

The previous prime is 102420143333. The next prime is 102420143453. The reversal of 102420143434 is 434341024201.

It is a super-2 number, since 2×102420143434² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 915039 + ... + 1020850.

It is an arithmetic number, because the mean of its divisors is an integer number (10976496300).

Almost surely, 2^102420143434 is an apocalyptic number.

102420143434 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

102420143434 is a deficient number, since it is larger than the sum of its proper divisors (73203797366).

102420143434 is a wasteful number, since it uses less digits than its factorization.

102420143434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1939677.

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 102420143434 its reverse (434341024201), we get a palindrome (536761167635).

The spelling of 102420143434 in words is "one hundred two billion, four hundred twenty million, one hundred forty-three thousand, four hundred thirty-four".